Study of growth rate in turbulent mixing layers

Abstract

Mixing layer growth rate is studied. Experiments are carried out in a low speed shear layer tunnel, where two flows originating from different blowers with different velocity and different turbulence characteristics coalesce at the sharp splitter plate edge forming the sheared mixing layer. Using different grids, two energy containing flows are produced and their thickness growth is studied with and without shear. Simulations are done in k-ε model to validate these flow configurations.